જો $y = \sin(\sin x)$ અને $y'' + f(x) \cdot y' + g(x) \cdot y = 0$ હોય,તો $f(x) \cdot g(x) =$

  • A
    $\frac{1}{2} \sin(2x)$
  • B
    $\frac{1}{2} \cos(2x)$
  • C
    $\sin(2x)$
  • D
    $\cos(2x)$

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વિધેય $f(x) = x^{2} + 3x + 2$ નું દ્વિતીય વિકલિત શોધો.

જો $y = a \cos (\ln x) + b \sin (\ln x)$ હોય,તો $x^2 \frac{d^2y}{dx^2} + x \frac{dy}{dx}$ ની કિંમત શોધો.

જો $y = 100 e^{2x} + 200 e^{-2x}$ અને $\frac{d^2 y}{dx^2} = ay$ હોય,તો $a = $ . . . . . .

જો $y = (\tan^{-1} 2x)^2 + (\cot^{-1} 2x)^2$ હોય,તો $(1 + 4x^2)^2 y'' - 16 =$

જો $y = \tan(\log x)$ હોય,તો $\frac{d^2 y}{d x^2} =$

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